Study group (n = 30)

Exercise ECG stage terminated

Control group (n = 30)

Exercise ECG stage terminated

I

II

III

IV

Completed

I

II

III

IV

Completed

Pre test

0

10

17

3

0

2

14

4

10

0

Post test

0

2

12

14

2

2

9

11

8

0

p^*

<0.01

>0.05